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A215632 Numbers n such that 44^n - 43^n is prime or PRP. 2
37, 283, 62903 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
No other term <= 68141.
a(4) > 10^5. - Robert Price, Sep 04 2012
LINKS
PROG
(PARI) is(n)=ispseudoprime(44^n-43^n) \\ Charles R Greathouse IV, Jun 06 2017
CROSSREFS
Sequence in context: A219740 A142835 A142234 * A165381 A086840 A190418
KEYWORD
nonn,bref,more,hard
AUTHOR
Jean-Louis Charton, Aug 18 2012
EXTENSIONS
Edited by M. F. Hasler, Sep 21 2013
STATUS
approved

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Last modified August 4 11:28 EDT 2024. Contains 374920 sequences. (Running on oeis4.)